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    METHOD AND SYSTEM FOR DUAL-MODE (SINGLE USER AND MULTI USERS) PACKET ERROR RATE BASED RATE CONTROL IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    METHOD AND SYSTEM FOR DUAL-MODE (SINGLE USER AND MULTI USERS) PACKET ERROR RATE BASED RATE CONTROL IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    双模式（单用户和多用户）的方法和系统在无线通信系统中基于差分速率的分组速率控制

    公开(公告)号：WO2014123770A1

    公开(公告)日：2014-08-14

    申请号：PCT/US2014/014049

    申请日：2014-01-31

    Applicant: QUALCOMM INCORPORATED

    Inventor： DU, Shu ,  JIA, Zhanfeng ,  ZHANG, Ning ,  CHO, James S. ,  GAO, Qinghai ,  TANDRA, Rahul

    IPC: H04L1/00 ,  H04B7/04 ,  H04B7/06

    CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0033 ,  H04L1/06 ,  Y02D50/10

    Abstract: Method of performing dual-mode rate control for an access point in a wireless communication system includes a single-user mode of operation and multi-user mode of operation. In the single-user mode, a basic rate for a station is determined based on channel conditions. In the multi-user mode, a rate for a plurality of stations is determined using tracking. The tracking includes performing a sounding for the plurality of stations. An initial multi-user current rate is then set equal to a function of a number of users and the basic rate. A transmission is sent to the plurality of stations using the current rate. A packet error rate (PER) is detected during transmission to the plurality of stations. The current rate is adjusted based on the PER. After rate adjustment, either sounding is triggered or the method returns to sending a transmission using the current rate.

    Abstract translation: 对无线通信系统中的接入点进行双模速率控制的方法包括单用户操作模式和多用户操作模式。 在单用户模式中，基于信道条件确定站的基本速率。 在多用户模式中，使用跟踪确定多个站的速率。 跟踪包括对多个站执行探测。 然后将初始多用户当前速率设置为等于用户数和基本速率的函数。 使用当前速率向多个站发送传输。 在传输到多个站期间检测到分组错误率（PER）。 当前费率根据PER进行调整。 速率调整后，触发声音或方法返回使用当前速率发送传输。

    LINK AGGREGATION IN WIRELESS LOCAL AREA NETWORKS
    3.
    发明申请
    LINK AGGREGATION IN WIRELESS LOCAL AREA NETWORKS 审中-公开
    在无线局域网中的链路聚合

    公开(公告)号：WO2015148180A1

    公开(公告)日：2015-10-01

    申请号：PCT/US2015/020895

    申请日：2015-03-17

    Applicant: QUALCOMM INCORPORATED

    Inventor： DU, Shu ,  DUVVURI, Srinivasa, Kumar ,  CHO, James, Simon ,  MEHTA, Vipin, Kumar ,  FREDERIKS, Guido, Robert ,  JAYARAMAN, Arunkumar ,  SMITH, Matthew, Daniel

    IPC: H04W28/06

    CPC classification number: H04W28/14 ,  H04L45/245 ,  H04W28/06 ,  H04W28/065 ,  H04W84/12 ,  H04W92/10

    Abstract: Methods, systems, and devices are described for establishing a virtual communication link including at least a first and second physical link between two devices. A single virtual packet queue of a device may receive one or more data packets to be transmitted via the virtual communication link. The single virtual packet queue may attach a virtual sequence number to each of the one or more data packets and send the one or more data packets to one or more of the first or the second physical link according to the assigned virtual sequence numbers. The one or more packets may then be communicated via the first and/or second physical links according to link specific sequence numbers, such as medium access control (MAC) sequence numbers, assigned to the one or more data packets by the first and/or second physical links.

    Abstract translation: 描述了用于建立包括两个设备之间的至少第一和第二物理链路的虚拟通信链路的方法，系统和设备。 设备的单个虚拟分组队列可以接收经由虚拟通信链路发送的一个或多个数据分组。 单个虚拟分组队列可以将虚拟序列号附加到一个或多个数据分组中的每一个，并且根据所分配的虚拟序列号将一个或多个数据分组发送到第一或第二物理链路中的一个或多个。 然后可以经由第一和/或第二物理链路根据链路特定序列号来传送一个或多个分组，例如通过第一和/或第二物理链路分配给一个或多个数据分组的媒体访问控制（MAC）序列号， 第二物理链接。

    MULTIDIMENSIONAL ALGORITHM FOR ROAMING
    4.
    发明申请
    MULTIDIMENSIONAL ALGORITHM FOR ROAMING 审中-公开
    用于漫游的多维算法

    公开(公告)号：WO2015053972A1

    公开(公告)日：2015-04-16

    申请号：PCT/US2014/058003

    申请日：2014-09-29

    Applicant: QUALCOMM INCORPORATED

    Inventor： HOMCHAUDHURI, Sandip ,  DU, Shu ,  KUMAR, Sumeet ,  RAO, Sohani, Ganesh ,  HUSTED, Paul

    IPC: H04W48/20 ,  H04W84/12

    CPC classification number: H04W48/20 ,  H04L5/0055 ,  H04W36/14 ,  H04W40/244 ,  H04W84/12 ,  H04W88/08

    Abstract: Methods, devices, and apparatuses are described for wireless communications using a multidimensional algorithm for roaming. In one aspect, an initial set of candidate access points (APs) is produced by a station using a roaming scan. The initial set may be identified based at least in part on an initial metric (e.g., beacon signal strength). A probe signal may be transmitted by the station to at least one of the candidate APs in the initial set and information may be received in response to the probe signals. The station may then identify a reduced set from the initial set based at least in part on the received information, where the reduced set is used to select a target AP. At least one additional metric may be identified and the probe signal may be configured to obtain information corresponding to the additional metrics. This information may be used by the station to select the candidate APs in the reduced set.

    Abstract translation: 描述了使用用于漫游的多维算法的无线通信的方法，设备和装置。 在一个方面，候选接入点（AP）的初始集合由使用漫游扫描的站产生。 可以至少部分地基于初始度量（例如，信标信号强度）来识别初始设置。 探测信号可以由站发送到初始设置中的候选AP中的至少一个，并且响应于探测信号可以接收信息。 然后，站可以至少部分地基于接收到的信息来识别来自初始集合的缩减集合，其中使用缩减集合来选择目标AP。 可以识别至少一个附加度量，并且可以将探测信号配置为获得对应于附加度量的信息。 该信息可以由站使用以选择缩减集中的候选AP。

    ACCESS POINT RESPONSE TO PS-POLL
    5.
    发明申请
    ACCESS POINT RESPONSE TO PS-POLL 审中-公开
    接入点对PS-POLL的响应

    公开(公告)号：WO2014186522A1

    公开(公告)日：2014-11-20

    申请号：PCT/US2014/038097

    申请日：2014-05-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHO, James, Simon ,  JAYARAMAN, Arunkumar ,  FREDERIKS, Guido, Robert ,  JIA, Zhanfeng ,  DU, Shu ,  RAISSINIA, Alireza ,  WANG, Jibing ,  HOMCHAUDHURI, Sandip

    IPC: H04W52/02

    CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

    Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

    Abstract translation: 通过在AP和站之间的有效传输和确认信息来描述无线通信系统中的功率节省的方法，系统和设备。 由站点确定进入省电模式和进入网络休眠模式之间的时间可以通过由AP发送到SIFS之后的站点的MPDU在发送确认到 来自电台的PS-Poll帧的电台。 站点进入省电模式的时间也可以通过发送A-MPDU来减少，其中A-MPDU的最后MPDU具有清除的指示符比特以指示不需要发送附加数据。 在没有来自台站的确认的情况下，AP可以防止向台站重传MPDU，以进一步提高效率。

    SYSTEMS AND METHODS FOR WIRELESS BAND SWITCHING
    6.
    发明申请
    SYSTEMS AND METHODS FOR WIRELESS BAND SWITCHING 审中-公开
    无线带宽切换的系统与方法

    公开(公告)号：WO2014153003A1

    公开(公告)日：2014-09-25

    申请号：PCT/US2014/028617

    申请日：2014-03-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： JIA, Zhangfeng ,  HOMCHAUDHURI, Sandip ,  DU, Shu

    IPC: H04W72/12

    CPC classification number: H04W24/02 ,  H04W28/18 ,  H04W36/06 ,  H04W52/0209 ,  H04W72/0453 ,  H04W76/15 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

    Abstract: Systems and methods are disclosed for coordinating operation on multiple frequency bands between two or more multiple concurrent band (MCB) devices. The band switch protocols may include sending information on a second band after a communications link has been established on a first band. The receiving device may treat the transmission of the frame on the new band as a message to switch bands, such that the transmitting and receiving devices may conduct subsequent communications on the new band. Further, the band switch protocols allow for seamless operation over the band switch event. As a result, a frequency band having desired performance characteristics may be selected dynamically.

    Abstract translation: 公开了用于在两个或更多个并发频带（MCB）设备之间的多个频带上的协调操作的系统和方法。 频带交换协议可以包括在第一频带上建立通信链路之后在第二频带上发送信息。 接收设备可以将新频带上的帧的传输视为切换频带的消息，使得发射和接收设备可以在新频带上进行后续通信。 此外，频带切换协议允许通过频带切换事件的无缝操作。 结果，可以动态地选择具有期望的性能特征的频带。

    DYNAMIC SOUNDING CONTROL IN WIFI
    7.
    发明申请
    DYNAMIC SOUNDING CONTROL IN WIFI 审中-公开
    无线网络中的动态监听控制

    公开(公告)号：WO2014042892A1

    公开(公告)日：2014-03-20

    申请号：PCT/US2013/057347

    申请日：2013-08-29

    Applicant: QUALCOMM INCORPORATED

    Inventor： DU, Shu ,  JIA, Zhanfeng ,  ZHANG, Ning ,  FREDERIKS, Guido Robert ,  JONES, Vincent Knowles IV ,  VERMANI, Sameer ,  CHEN, Chin-Hung ,  TANDRA, Rahul ,  GAO, Qinghai ,  BABU, Balaji Srinivasan

    IPC: H04L1/00 ,  H04B7/04 ,  H04B7/06 ,  H04L25/02

    CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0647 ,  H04L1/0027 ,  H04L5/00 ,  H04L25/0204 ,  H04L25/0224

    Abstract: A method of performing dynamic sounding in a wireless communication device includes determining whether to perform sounding based on an age of current channel state information (CSI). An achievable throughput can be recorded as a reference throughput after performing the sounding. A current achievable throughput can be compared with the reference throughput. A CSI timestamp can be reset when the current throughput is above the reference throughput by a first predetermined amount, thereby prolonging a lifespan of the current CSI. The CSI timestamp can be reduced when the current throughput is below the reference throughput by a second predetermined amount, thereby reducing the lifespan of the current CSI.

    Abstract translation: 在无线通信设备中执行动态声音的方法包括基于当前信道状态信息（CSI）的年龄确定是否执行发声。 执行声音后可以将可实现的吞吐量记录为参考吞吐量。 可以将当前可实现的吞吐量与参考吞吐量进行比较。 当当前吞吐量高于参考吞吐量第一预定量时，可以重置CSI时间戳，从而延长当前CSI的寿命。 当当前吞吐量低于参考吞吐量第二预定量时，可以减少CSI时间戳，从而减少当前CSI的寿命。

    SELECTING A MODULATION AND CODING SCHEME FOR BEAMFORMED COMMUNICATION
    8.
    发明申请
    SELECTING A MODULATION AND CODING SCHEME FOR BEAMFORMED COMMUNICATION 审中-公开
    选择波束形成通信的调制编码方案

    公开(公告)号：WO2014039722A2

    公开(公告)日：2014-03-13

    申请号：PCT/US2013/058330

    申请日：2013-09-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： JIA, Zhanfeng ,  DU, Shu

    IPC: H04L1/00

    CPC classification number: H04B7/04 ,  H04B7/0617 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0033

    Abstract: In adaptive modulation and coding scheme (MCS) selection for directional antenna systems, at least one table is defined that maps different ranges of signal quality values to different sets of MCS parameters. In some implementations, each range corresponds to a separate table (e.g., a given table will include the MCS and other information for that range of signal quality values). In the event an abrupt change in signal quality is detected (e.g., a change in received signal strength greater than or equal to a defined threshold), instead of using a conventional rate selection algorithm, a new MCS is selected through the use of the ranges from the table(s). In this way, a relatively large change in MCS may be accommodated, if warranted by the change in signal quality.

    Abstract translation: 在定向天线系统的自适应调制和编码方案（MCS）选择中，定义了至少一个表格，其将不同范围的信号质量值映射到不同的MCS参数集合。 在一些实现中，每个范围对应于单独的表格（例如，给定的表格将包括用于该范围的信号质量值的MCS和其他信息）。 在检测到信号质量的突变（例如，接收信号强度的变化大于或等于定义的阈值）的情况下，代替使用传统的速率选择算法，通过使用范围来选择新的MCS 来自表格。 通过这种方式，如果信号质量发生变化，则可以适应MCS的较大变化。

    SCHEDULING TRANSMISSION FOR MULTI-USER, MULTIPLE-INPUT, MULTIPLE-OUTPUT DATA
    9.
    发明公开
    SCHEDULING TRANSMISSION FOR MULTI-USER, MULTIPLE-INPUT, MULTIPLE-OUTPUT DATA 审中-公开

    公开(公告)号：EP3327947A1

    公开(公告)日：2018-05-30

    申请号：EP18151557.8

    申请日：2013-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： DU, Shu ,  JIA, ZHANFENG ,  ZHANG, Ning ,  GAO, Qinghai ,  SRINIVASAN BABU, Balaji

    IPC: H04B7/04 ,  H04B7/06 ,  H04W72/12 ,  H04L5/00

    Abstract: An access point determines the buffered data for each station of a plurality of stations in a BSS and groups the stations with similar station characteristics. The transmission time to the stations in a group can be apportioned. The groups can be ordered based on station characteristics and a transmission history. A sounding for a group can be performed based on the order. The MU-MIMO transmission for the group can be performed until a first condition is met. If the first condition is met, then the sounding and the MU-MIMO transmission for a next group can be performed, according to the order, until a second condition is met. The first condition can include an apportioned transmission time having expired and/or the buffers for the group being flushed. The second condition can include new data having been buffered by the AP and/or all buffered data having been transmitted.

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